A
precinct is a space enclosed by the walls or other boundaries of a particular place or building, or by an arbitrary and imaginary line drawn around it. The term is often used to refer to a division of a police department in a large city (either to the neighborhood patrolled or to the police station itself).
New York City uses the term "precinct" for its police stations. It is sometimes incorrectly used by non-Philadelphians to police stations of that city which are districts.